I had been in an jet airways domestic flight. I found very few indian air hostesses who were really polite and willing to serve. I happend to request a business class air hostess for water by mistake but she completely ignored the request as I was travelling in economy class.
I had also been on austrian airways flight but the attitude of air hostesses (white) was much more professional and polite. Even the bussiness class air hostesses I found were polite and professional enough to serve economy class passengers when requested to do so.